#define _CRT_SECURE_NO_WARNINGS 1
#include<stdio.h>
int main()
{
	int num = -1;
	int i = 0;
	int count = 0;
	for (i = 0;i < 32;i++)
	{
		if ((num >> i) & 1 == 1)
		{
			count++;
		}
	}
	printf("%d", count);
}